JPH0751490A - Spindrier basket of washing machine - Google Patents

Abstract

PURPOSE:To strength the caulked joint of a body part consisting of metal plate at a low cost. CONSTITUTION:At first, the metal plate is bent cylindrically and a pressing board 15 long enough to cross over a caulked joint part 10 is installed with a spring 14 fixing a balance ring 12 at the upper end of the body part 10 outside the caulked joint part 10 of body 3a formed by performing the caulked joint on the both ends. Second, the plural rids are formed on the inner peripheral part of an installation guide groove part 13 of the balance ring 12 and it is abutted on the outside of the chauked joint part 10 of the body part 3a. Then, the upper part of the chauked joint part 10 of the body part 3a is welded.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a washing machine dewatering tub made of a metal plate.

[0002]

2. Description of the Related Art In recent years, in washing machines, dehydration tubs made of metal plates such as stainless steel plates have been used instead of conventional plastics. This product has high mechanical strength and can endure high rotation, so that it has an advantage that the dehydration performance can be improved.

However, regarding its production, the body is formed by bending a metal plate into a cylindrical shape and caulking and joining both ends thereof, and the caulking joint is deformed at high speed rotation. ， Because there is a risk of breaking, caulking the bottom part to the body part further, and at the upper edge part, caulking a metal ring for reinforcement to the body part so as to strengthen it. There is.

[0004]

However, in the case of the above, a large metal ring is required for strengthening the caulking joint portion of the body portion, and there is also a manufacturing difficulty in further caulking and joining the metal ring to the body portion. Therefore, there is a problem that the cost becomes high.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a dewatering tub of a washing machine in which the caulking joint of a body made of a metal plate can be strengthened at a low cost. .

[0006]

In order to achieve the above object, in the dewatering tub of the washing machine of the present invention, the body portion is formed by bending a metal plate into a cylindrical shape, and both ends thereof are caulked and joined together. First, a screw for attaching a balance ring to the upper edge of the body is provided with a holding plate having a length that straddles the caulking joint, on the outside of the caulking joint of the body. It is characterized in that it is tightened together and installed.

In the dehydrating tub of the washing machine of the present invention, the second
Further, a plurality of ribs formed on the inner circumference of the mounting guide groove portion of the balance ring mounted on the upper edge portion of the body are brought into contact with the outside of the caulked joint portion of the body.

In the dehydrating tub of the washing machine of the present invention, the third
In addition, the upper portion of the caulking joint portion of the body portion is welded.

[0009]

According to the above means, a large reinforcing member is not required, and the caulking joint portion of the body portion can be strengthened without difficulty in manufacturing.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS. First, FIG. 4 shows the entire structure of a washing machine, and in particular, a washing machine for combined use of dehydration, in which an outer case 1 is provided with a tub 2 for storing water. A dewatering tub 3 also serving as a washing tub is provided in the tub 2, and an agitator 4 is provided at the bottom of the dewatering tub 3. A drive mechanism 6 mainly composed of a motor 5 is arranged below the trough 2 to stop the dehydration tub 3 and rotate the agitator 4 during washing to agitate the laundry. By rotating the dehydration tub 3 together with the agitator 4 during the dehydration, the laundry is dehydrated through the dehydration hole 7. In addition, a drainage valve 8 and a drainage hose 9 for draining water from the inside of the tub 2 are also arranged in the lower portion outside the tub 2.

The dehydration tub 3 is, more specifically, the body 3a.
1 and a bottom portion 3b. The body portion 3a is formed by bending a metal plate such as a stainless steel plate into a cylindrical shape, and the both end portions thereof are shown in FIG.
Further, it is formed by caulking and joining by "haze caulking" shown by caulking and joining portion 10 in FIG. 2, and bottom 3b is further caulked and joined to form a bottomed cylindrical shape. Further, as shown in FIG. 3, a balance ring 12 containing a liquid 11 is fitted to an upper edge portion of the body portion 3a by a mounting guide groove portion 13 on the outer periphery of the balance ring 12 (one in FIG. 3). (Only shown) are attached by screws 14, and by using the two screws 14 shown in FIG. 1 among them,
On the outside of the caulking joint 10 of the body portion 3a, a holding plate 15 having a length that extends over the caulking joint 10 is fastened together with the balance ring 12 and attached.

In this structure in which the pressing plate 15 is attached to the outside of the caulking joint 10 of the body 3a of the dehydration tank 3 made of a metal plate, the deformation of the caulking joint 10 during high speed rotation, Reinforcement to prevent breakage is provided by the holding plate 15. Further, in this structure, the holding plate 15 has the body portion 3
The length is just enough to straddle the caulking joint 10 of a and does not require a large reinforcing member such as a conventional metal ring. Moreover, the mounting is simple with the screw 14, and there is no manufacturing difficulty like the conventional metal ring caulked and joined to the body portion. Further, the screw 14 is originally for mounting the balance ring 12. Since it is shared, there is no need for special parts for attaching the holding plate 15, and generally, the cost is low, and the caulking joint portion of the body 3a of the dehydration tank 3 made of a metal plate is inexpensive. Can be strengthened by 10.

In contrast to the above, FIGS. 5 and 6 show a second embodiment of the present invention, in which a plurality of ribs 16 are formed on the inner circumference of the mounting guide groove portion 13 of the balance ring 12, and the ribs 16 are formed. 3 shows that the body 3a of FIG. 3 is brought into contact with the outside of the caulking joint 10 portion. By doing so, reinforcement for preventing deformation and destruction of the caulking joint 10 during high speed rotation is shown. The rib 16 allows the above-mentioned first
It is possible to obtain the same effect as that of the embodiment.

FIG. 7 shows a third embodiment of the present invention, in which the upper portion of the caulking joint 10 of the body 3a of the dehydration tank 3 is welded as indicated by the welded portion 17 (particularly spot welding). By doing so, since the welded portion 17 can strengthen the deformation and breakage of the caulking joint portion 10 at the time of high speed rotation, the same effect as the first embodiment can be obtained. Obtainable.

The present invention is not limited to the embodiments described above and shown in the drawings, and is not limited to the dehydrating tank of a combined washing machine and the dehydrating tank of a two-tub type washing machine. Can be similarly applied and implemented, and can be appropriately modified and implemented without departing from the scope of the invention.

[0016]

The dewatering tub of the washing machine of the present invention is as described above, and the following effects can be obtained.
In the case where the body is formed by bending a metal plate into a cylindrical shape and caulking and joining both ends thereof, the caulking joint is straddled on the outside of the caulking joint of the body. By attaching the holding plate of a length to the upper edge of the body by tightening the balance ring together with the screws, the caulking joint of the body made of a metal plate can be strengthened at low cost.

Secondly, a plurality of ribs formed on the inner circumference of the mounting guide groove portion of the balance ring mounted on the upper edge portion of the body are brought into contact with the outside of the caulked joint portion of the body, whereby Similarly, the caulking joint of the body made of a metal plate can be strengthened at low cost.

Thirdly, by welding the upper part of the caulking joint of the body, the caulking joint of the body made of a metal plate can be strengthened at low cost.

[Brief description of drawings]

FIG. 1 is a perspective view of a main portion showing a first embodiment of the present invention.

2 is a cross-sectional view taken along the line AA of FIG.

FIG. 3 is a vertical sectional view taken along the line BB of FIG.

[Fig. 4] Overall vertical side view

FIG. 5 is a view corresponding to FIG. 1 showing a second embodiment of the present invention.

FIG. 6 is a view corresponding to FIG.

FIG. 7 is a partial equivalent view of FIG. 1 showing a third embodiment of the present invention.

[Explanation of symbols]

3 is a dehydration tank, 3a is a body part, 10 is a caulking joint part, 12 is a balance ring, 13 is a mounting guide groove part, 14 is a screw,
Reference numeral 15 is a holding plate, 16 is a rib, and 17 is a welded portion.

Claims (3)

[Claims] 1. A body portion formed by bending a metal plate into a cylindrical shape and caulking and joining both ends thereof, wherein the caulking joint is provided outside the caulking joint portion of the body portion. A dewatering tub for a washing machine, characterized in that a holding plate having a length that straddles the parts is attached by tightening together with a screw attaching a balance ring to the upper edge of the body. 2. A body portion formed by bending a metal plate into a cylindrical shape and caulking and joining both ends thereof, wherein the body portion is provided outside the caulking joint portion. A dehydrating tub for a washing machine, wherein a plurality of ribs formed on the inner circumference of an attachment guide groove portion of a balance ring attached to an edge portion are brought into contact with each other. 3. A body portion formed by bending a metal plate into a cylindrical shape and caulking and joining both ends thereof, wherein the upper portion of the caulking joint portion of the body portion is welded. And a washing machine dehydration tub.